From life-saving medical devices to entertaining gadgets, every invention has a story. This behind-the-scenes exploration reveals the origin of familiar and specialized inventions, and introduces the imaginative people who created them. Time Links offer at-a-glance sequencing of events, people, and other important chronological or historical details. Unlike standard timelines, Time Links provide expanded details about the featured topic, but are still concise and compact. Each Time Link fosters learning and promotes recall through colorful, instructive imagery to provide context and broaden understanding, engaging headlines and explanatory paragraphs, concluding material to help students connect and apply new information. Each includes a reduced-size version of product assembled end to end to serve as a reference guide, study aid, and planning tool. Product is 7 1/4" high x 88" long when assembled end to end.